Nutritional strategies for ACL recovery 🦵
Does altitude change the fuelling equation?
Nutrition and rehabilitation after anterior cruciate ligament reconstruction: A systematic review
Study Details
This new systematic review summarised the available evidence on nutrition and rehabilitation following anterior cruciate ligament reconstruction (ACLR), including data from 15 studies and more than 700 participants 📚
Here are the key findings ⬇️
Key Findings
Protein & Muscle Recovery 🥩
📈 Higher protein intakes were consistently associated with better muscle mass retention during rehabilitation
💪 Protein supplementation alongside rehabilitation improved quadriceps strength recovery
🧬 Higher protein intakes (~1.9 g/kg/day) may help support muscle protein synthesis during periods of reduced activity
🏋️ Combining resistance training and protein appears more effective than rehabilitation alone
🥛 Whey protein supplementation improved quadriceps strength recovery in some studies
⚡ Protein remains the nutritional intervention with the strongest evidence for supporting ACL rehabilitation
Supplement Strategies 💊
🧬 Leucine supplementation showed promise for supporting muscle recovery and limiting muscle loss
🐟 Omega-3 supplementation (flaxseed oil providing 4.2 g ALA/day) improved functional outcomes and return-to-sport rates
🏃 Athletes receiving flaxseed oil were more likely to return to their pre-injury level of sport
☀️ Athletes with low vitamin D levels experienced greater quadriceps muscle loss after surgery
🔬 Correcting vitamin D insufficiency before surgery may help preserve muscle during recovery
Recovery & Return to Sport 🔄
🏋️♂️ Preserving muscle mass appears critical for successful rehabilitation
📉 ACL reconstruction commonly results in substantial muscle atrophy and strength loss
⚡ Nutritional support may help reduce the magnitude of muscle loss during rehabilitation
🎯 Most studies focused on muscle function, strength and recovery rather than return-to-sport outcomes
🏃 Return-to-sport was only directly assessed in one study, highlighting a major research gap
❓ More high-quality research is needed before specific ACL nutrition guidelines can be developed
What Didn’t Work? 🚫
💥 Creatine supplementation did not improve strength recovery during the first 12 weeks after surgery
🍊 Vitamins C and E altered some inflammatory markers but generally did not improve strength or functional outcomes
🦴 Glucosamine supplementation did not improve rehabilitation outcomes
⚠️ Evidence for collagen-containing supplements remains limited and inconclusive
Conclusion
For enhancing outcomes focus on these 6 key points ⬇️
🥩 Prioritise protein intakes of ~1.6-2.2 g/kg/day throughout rehabilitation
🍽️ Spread protein intake evenly across the day
☀️ Assess and correct vitamin D insufficiency where appropriate
🐟 Consider increasing omega-3 intake through diet or supplementation
🏋️ Use nutrition to complement, not replace, a structured rehabilitation programme
📈 Focus on preserving muscle mass and strength throughout recovery
Reference
https://pubmed.ncbi.nlm.nih.gov/42171084/
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